/*
 * Copyright 2011 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */


#ifndef GrGLTexture_DEFINED
#define GrGLTexture_DEFINED

#include "include/gpu/ganesh/SkImageGanesh.h"
#include "src/gpu/ganesh/GrGpu.h"
#include "src/gpu/ganesh/GrTexture.h"
#include "src/gpu/ganesh/gl/GrGLTypesPriv.h"
#include "src/gpu/ganesh/gl/GrGLUtil.h"

class GrGLGpu;

class GrGLTexture : public GrTexture {
public:
    struct Desc {
        SkISize fSize = { -1, -1 };
        GrGLenum fTarget = 0;
        GrGLuint fID = 0;
        GrGLFormat fFormat = GrGLFormat::kUnknown;
        GrBackendObjectOwnership fOwnership = GrBackendObjectOwnership::kOwned;
        skgpu::Protected fIsProtected = skgpu::Protected::kNo;
    };

    static GrTextureType TextureTypeFromTarget(GrGLenum textureTarget);

    GrGLTexture(GrGLGpu *, skgpu::Budgeted, const Desc &, GrMipmapStatus, std::string_view label);

    ~GrGLTexture() override {}

    GrBackendTexture getBackendTexture() const override;

    GrBackendFormat backendFormat() const override;

    // TODO: Remove once clients are no longer calling this.
    void textureParamsModified() override
    {
        fParameters->invalidate();
    }

    GrGLTextureParameters *parameters()
    {
        return fParameters.get();
    }

    GrGLuint textureID() const
    {
        return fID;
    }

    GrGLenum target() const;

    GrGLFormat format() const
    {
        return fFormat;
    }

    bool hasBaseLevelBeenBoundToFBO() const
    {
        return fBaseLevelHasBeenBoundToFBO;
    }
    void baseLevelWasBoundToFBO()
    {
        fBaseLevelHasBeenBoundToFBO = true;
    }

    static sk_sp<GrGLTexture> MakeWrapped(GrGLGpu *, GrMipmapStatus, const Desc &, sk_sp<GrGLTextureParameters>,
        GrWrapCacheable, GrIOType, std::string_view label);

    void dumpMemoryStatistics(SkTraceMemoryDump *traceMemoryDump) const override;

protected:
    // Constructor for subclasses.
    GrGLTexture(GrGLGpu *, const Desc &, sk_sp<GrGLTextureParameters>, GrMipmapStatus, std::string_view label);

    // Constructor for instances wrapping backend objects.
    GrGLTexture(GrGLGpu *, const Desc &, GrMipmapStatus, sk_sp<GrGLTextureParameters>, GrWrapCacheable, GrIOType,
        std::string_view label);

    void init(const Desc &);

    void onAbandon() override;
    void onRelease() override;

    bool onStealBackendTexture(GrBackendTexture *, SkImages::BackendTextureReleaseProc *) override;

    void onSetLabel() override;

private:
    sk_sp<GrGLTextureParameters> fParameters;
    GrGLuint fID;
    GrGLFormat fFormat;
    GrBackendObjectOwnership fTextureIDOwnership;
    bool fBaseLevelHasBeenBoundToFBO = false;

    using INHERITED = GrTexture;
};

#endif
